380661813303 has 16 divisors (see below), whose sum is σ = 508421176032. Its totient is φ = 253338624000.

The previous prime is 380661813289. The next prime is 380661813313. The reversal of 380661813303 is 303318166083.

It is not a de Polignac number, because 380661813303 - 2⁵ = 380661813271 is a prime.

It is a super-2 number, since 2×380661813303² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380661813313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16951563 + ... + 16974003.

It is an arithmetic number, because the mean of its divisors is an integer number (31776323502).

Almost surely, 2^380661813303 is an apocalyptic number.

380661813303 is a deficient number, since it is larger than the sum of its proper divisors (127759362729).

380661813303 is a wasteful number, since it uses less digits than its factorization.

380661813303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31906.

The product of its (nonzero) digits is 186624, while the sum is 42.

Adding to 380661813303 its reverse (303318166083), we get a palindrome (683979979386).

The spelling of 380661813303 in words is "three hundred eighty billion, six hundred sixty-one million, eight hundred thirteen thousand, three hundred three".